package chapter02;

import java.util.Scanner;

public class SuperMarket {
    public static void main(String[] args) {
        double yashua = 8.8;
        double maojin = 10.0;
        double shuibei = 18.8;
        double pingguo = 12.5;
        double xiangjiao = 15.5;
        System.out.println("--------黑马小商城--------");
        System.out.println("1.牙刷的价格为：8.8元");
        System.out.println("2.毛巾的价格为：10.0元");
        System.out.println("3.水杯的价格为：18.8元");
        System.out.println("4.苹果的价格为：12.5元");
        System.out.println("5.香蕉的价格为：15.5元");

        //循环开始前准备工作
        String xuanZe = "y";    //一种数据类型 存放字符串  默认选购
        double zongjia = 0; //总价一般放在循环外部
        Scanner scl = new Scanner(System.in);   //用来获取输入
        //不知道用户需要循环几次 可能无限次 使用while 或者do while
        while (xuanZe.equals("Y")) {   //Sting不支持 xuanZe == "Y"
            System.out.println("请输入你需要购买的序列号");
            int xuHao = scl.nextInt();//获取输入的序列号
            // 判断用户输入的序号 进行不同价格计算
            if (xuHao == 1) {
                System.out.println("请输入你要购买牙刷的数量");
                int yaShuaShuLiang = scl.nextInt();
                //加上以前累计购买商品的价格 放入总价
                zongjia = zongjia + yaShuaShuLiang;
                System.out.println("你购买了牙刷" + yaShuaShuLiang + "只，需要花费" + yaShuaShuLiang + "元");
            } else if (xuHao == 2) {
                System.out.println("请输入你要购买毛巾的数量");
                int maojinShuLiang = scl.nextInt();
                //加上以前累计购买商品的价格 放入总价
                zongjia = zongjia + maojin * maojinShuLiang;
                System.out.println("你购买了毛巾" + maojinShuLiang + "只，需要花费" + maojin * maojinShuLiang + "元");
            } else if (xuHao == 3) {
                System.out.println("请输入你要购买水杯的数量");
                int shuibeiShuLiang = scl.nextInt();
                //加上以前累计购买商品的价格 放入总价
                zongjia = zongjia + shuibei * shuibeiShuLiang;
                System.out.println("你购买了水杯" + shuibeiShuLiang + "只，需要花费" + shuibei * shuibeiShuLiang + "元");
            } else if (xuHao == 4) {
                System.out.println("请输入你要购买苹果的数量");
                int pingguoShuLiang = scl.nextInt();
                //加上以前累计购买商品的价格 放入总价
                zongjia = zongjia + pingguoShuLiang;
                System.out.println("你购买了苹果" + pingguoShuLiang + "只，需要花费" + pingguo * pingguoShuLiang + "元");
            } else if (xuHao == 5) {
                System.out.println("请输入你要购买香蕉的数量");
                int xiangjiaoShuLiang = scl.nextInt();
                //加上以前累计购买商品的价格 放入总价
                zongjia = zongjia + xiangjiaoShuLiang;
                System.out.println("你购买了香蕉" + xiangjiaoShuLiang + "只，需要花费" + xiangjiao * xiangjiaoShuLiang + "元");
            }else {
            }
            System.out.println("需要继续购买输入Y，否则输入N");
            xuanZe = scl.next();
        }
    }
}
